Water-resisting adhesive composition of matter



' UNDITED sjrx'r'ss 5-4 51. 53o. g i ii-"vi Uijug Pm-m .orrica ARTHUR-RIDDLE, 0 3 TBEN'ION, imw JERSEY, ASSIQNOB TO PRODUCTS COB- 'POBLTION OF AMERICA, A CORPORATION OI DELAWARE V warms annasrvn oourosmonor mm I invention relates to normally waterreslsting, inaqueous flexible gummy golloidal materials treated with an alkaline eartl'fli'y' Wand a water-soluble metallic base 5 caust i c a l l a li, with the additional treatment of a water-absorbing or water-miscible or hydrophillic colloid. ave ound n the dispersingand the droxide in the presence ofa metallic base caustic alkali, like sodium or potassium hyzo droxide), that the dispersion of the inaqueous gummy colloidal substance is more stable and the hydrophillic colloid or other watermiscible colloid so treated will add many desirable qualities to the aqueous dispersion.

ous flexible mm colloids as mea or The inaqueous substances the water-absorbin colloid be a ueously disperse is may e rought a out by first 35 dissolving the water-insoluble gum in an ornic solvent such as gasolene, kerosene, beng 20 xv 0 or heavier oirsaa t en aqueously 'dis persing the organic solution so made by adding thereto a water-miscible colloid in its natural state or treate W1 an a aline'ear 'de and a metallic base caus W01 other treatment. The aqueous ispersion of the water-insoluble gum colloid may also be brought about by masticating-the same through rolls in the presence of a dirain medium and water. Or if obtainable the water-insoluble. and inaqueous gummy colloids maybeused or treated in their natural aqueously dispersed or latex state. A good example of this is natural rub- Application fled m 21,

The water-resis'tin or nor'mall ipalgue;

g nt erem are suc as c 10 e or chi'cle' substitutes balata, tta-Betcha, rubQr or w 55- tamm su stances either natural or synthetic and tliy may be m their crude, solid, gummy li uid state.

if solid may in the course of treatment with 1937. sex-lain. nonstaher late in its pure, reserved, thickened or otherwise treated con 'tion.' Said latex generally being sold in'commerce with about 3% of ammonia added thereto to reserve same.

e earth h 'droxi es are meant i .1 ll A; the h roxi es 0 suc as ea clum, ban

ti m

stron um or a 'esium but/more. a mularlyo cal'cium. zlalcium hydroxide appears to give the best results when a fluid and strong g ue-likesubstance is desired. The oxides of such substances are meant to be within the scope of my invention, as the oxides thereof when used in the presence of water will generally be changed to hydroxides. Further, the oxides or hydrox-- ides as disclosed may be the natural earthy substances or they may be the product of chemical processes, as or instance, the preci itation of calcium hydroxide from other.

ca ciuni compounds. The alkaline calcium hydroxides as derived from calcined marine shells and bon materials may also 5 e advantageously uti we in my invention.

If the normally water-resisting and inaque ous colloids tend to be unstable when certain incompatible substances are added to their aqueous dispersions or if a more economical and stranger adhesive substance is desired, a hydro hillic colloid like casein.

animal lue or marine lue. starches particularly casiri'a treated or untreate condition to the water-insoluble colloid in aqueous dispersion or in solid gum form and then dispersed. The alkaline earth and the metallic base caus 'sava starc and starcii degg ation prod ucts, Blood or blood alumen may v a j EXamine ',tic alkali may be added either to the dispersion, or to its various ingredients, however as the alkaline earth hydroxides have a tendency to act somewhat quickly with certain colloids like casein and starch it is preferable to first add the metallic base caustic alkali to the components of the dispersion, or to add the earthy hydroxide and the watersoluble metallic base alkali simultaneouslyto the dispersion or the components thereof.

Many colloidal materials while not producing as strong an adhesive composition as casein for example, will add or give adhesive,

supporting and other qualities to the disper- I 79l2C0ATlNG R PLASTIC." 3135 fi g g se f 106. COM-POSITIONS, Examiner aion. these dolloidal and supporting ma: The above composition makes a b'ut tenals might be mentioned, water-soluble oils somewhat caustic glue. By reducing the like Turke red 001- so waamount of sodium hydroxide and substituta w ,aralc or tr'a ingotherchemicals n ue be m- I Cla a may be used in duced, which maybe as cows:

my composition, ut in or er to prevent un- M g! due thickening c-r coagulation theyshould Casein 61d: be mixed with water-soluble colloids like Calcium h droxide s -is or bnm Water-soluble sili- Ma oxide 5 4e cates suc as sodium silicate may beadded to potinssium a;""' 2 aqueous sperslon orpa rtsthereofbefore Sodium bomte 12 but in so domg care'should be I taken to void coagulation, precipitation or a i g aggg i sghds) "'7 curdling of the aqueous dispersion or of its wager fi gi"""""f" 1; ingredients. If this coagulation is undesira- 1 P8 "-T""' ble it may be avoided by first making the dis In, the above example the sodium silicate rsion with the aid of a water-soluble coland the, sodium sesqui carbonate are preferoid that is compatible to the other ingredi ably mixed together and the casem dissolved cuts of dispersion and alsotothe silicate solu 1n the water and the other ingredients. Q tion. Such water-sqlublecolloidsare casein, About 5 arts of sodium chloridewill tend giltiqorstarclfl'preferably in an alkalinTc'om to make t e lime more so u e an the addi- W ion as acid substances tend to precipitate tion thereto of a reservin a at such as so- EE" rese insoluble siliciltes from the composition. dium fo'rmate or 0 er p rv Ives The water-soluble metallic base caustic al- Beneficial E the composition. The casein as kali is meanttobesuch assodium 13% and other d ingredients may be "ked e um h 'droxide. It is to'be nude t a separately an later dissolved and a ded to other metallic base and caustic water-soluble the inaqueous colloi in a eons dispersion.

d alkalies may be'also utilized. Furthenthe j A few percent of te neg or cedar 9il will oxides and roxides o t such as or help to preserve the composition as well as an may .155 be used as 'tliebxides give it ascent. After the casein is dimolved 'or peroxides of sodium or potassium and the silicate mixed therewith the composi will become hydroxides on t e addition may then be combined with tion of water thereto. Also the metallic Rubber latex, 200 parts by weight. f base and water-soluble caustic alkalies may 0 er example of my composition which as be combined with other chemicals to form may be advantageously used as an adhesive caustic doublmcompounds such as the com i z1 ng i sasfo1lows:

billing of com unds of 1 drofluoric, hos- :3,? Dhonc or no aci wit ca c a or 22; e i oe Dextrine. 60 4o mthough some aqueous dispersions may Animal he 59 I have or possesslittle or; no adhesive in their 6min 10 aqueous state, they will nevertheless act'as calcium h dmxidem binding mediums in their dry or dehydrated Sodium h 7-, 5 am. Which isentir'ely within the meaning water Ja 5 5 ea of fadhesive, whether it be a strong-waterno resisting glue or a simple surface size or coat- The ca-sein may be eliminated'as it is only mg or the base of a plastic mass alone or as added to 've stren htc the composition and the vehicle of other or filling materials. if used it is prefers le to dissolve itfir'st in an The following example of my invention alkali or as given in previous examples. The iflflflllbe given as a guide when a he is made above composition is then mixed with:

for wood workingandfor the m affifigof lamf a 1 "":f Chicle substitute... 50

' c233...i$3$l:::::::::::i: 2% m a e y be dis Caustic m nv solved m a voTa'ti which 011 may be rewater 1 v 300 moved after. rsion with the water-soluble 0 olloids. If the inaqueous colloids are dis- I The above mgredientsare mixed (itispref- .eofved in oils like linseed, China wood or nonco stable to soak the casem 1n theiwater) 'n oil the amount of such Oil is depen i and the calcium hydroxide and the"6dium cut on e result desired in the finished. The Y hydroxide dissolves the casein. The'mixture inaqueous oily solution is then added to the .18 then combined with: water-soluble colloids and dispersed therein. I r latex (approximately 37%, rubber If a more flexible composition is desired, 100

ll con parts by weight. parts by weight of rubberin an oily solution r l a 0, l I. "5 I. I a

solubilizin a ents are 0 a dehyde $1 formaldehyde, liexamethylenebetramirie, ca

or in aqueous dispersion may be added to the foregoing com osition. If the composition containing rubber is to be vulcanized a sulphur or sulahur coma oundsand acceleratin a entsmay wa n v o tecompositlon or ii Elie composition is made into thin sheets with I filling material added thereto, the various cold vulcanizing process may be utilized.

The examples given are to be used only as m guides. For the season, climate or temperature of the working conditions all have an efi'ect on the compositions. In hot climates the compositions generally require more of the caustic alkalies. The proportions of various ingredients may in some instances be doubled or tripled in order to overcome difiiculties such as acidity of ingredients, expense of o eration, climate and many other causes. hen the water-soluble colloids are to be in compositions that will be in damp places or around water it is then desirable that those colloids be treated to an insolubilizin or a water-irreversibilizin a ent. liese agents may 5 added to the mucus ingredients of the 2s composition or to the composition as a whole.

Colloids like bentonite cla, water-soluble oils and others are not as 8 I'll e IlO\VI1 as IRS bilizable colloids, although the water-soluble oils do sometimes revert to their original nonso aqueous oily condition and may thereby be somewhat irreversibilized. Among these aracium, Z1110 and co er clilor des, otassid'n'i or sodium chroriiiffiflmfimc am or com ounds oi tanmc acid also a many acid salts like saium acid su l hate or zinc sulhate.

In the example given only the basic adhesive compositions are given, but in every art and industry there are countl ss filling, colorjggagents and materials that may be a e to my composition to satis known and definite needs of the art or in ustry, but which addition does not in the least require further inventive research if the amounts and properties are known to the art. Of these materials will be mentioned, carbon and other blacks m zinc oxide, the carbonates and stearates a? sodlum, calcium ma esmm etc. Ur lblOllS materi i like cotton, cellulose, shredded or ound wood cork or leather. 1 s 1 e inseed, China Wm cotton seed oil, mix es resins and the like. The addition of such materm are generally necesary when the composition is used as the adhesive vehicle of a sizing or coating or in the gluing of rough wood.

00 While I have herein described some particular compositions embodying my invention and methods of producing the same, and also mentioned some of the arts in which my inventlon may be utilized, it is to be understood 8 that the invention is not limited to those arts,

or to the methods or precise ingredients or pro ortions mentioned.

aving thus described my invention, I claim and desire to protect by Letters Patent of the United States:

1. An adhesive composition comprising ghbarlai 3. An adhesive composition comprising rubber latex, casein, calcium hydroxide and a formaldehyde substance and a water-soluble meta 4 10 use caustic hydroxide.

4. An adhesive composition com rising rubber latex, casein calcium h droxide, sodium hydroxide, sodium fluori e and o rgi ggaisadim n witness whereof I hereunto set my hand this 19th day of July 1927.

- ARTHUR BIDDLE.

ex, casein, calcium hydroxide and 

